Aliment-forming device



Se t. 9, 1930. J. c. BERGNER 1,775,617

AI'JIMENT FORMING DEVICE I Filed June 16. 1928 2 Sheets-Shet 1 WITNESSES 50 INVENTOR:

. BY Jail ij azzza;

' WATTORNEYSI Sept, 9, 1930. I J. c. BERGNER 1,775,617

ALIMENT FORMING DEVICE Filed June 16. 1928 2 Sheets-Sheet 2 .WITNESSES INVENTOR:

' mm Sept. a 1930 UN ED ATES P TENT; OFFICE I63! 0. mm or msnowimrmmmvma, assrenon r nouenu'u rmcnnnl com'oaarron, or new ronx, n. Y., .a conrcaarron or new ronx aLnnm'r-romme nnv'rdn 1 Application fled June 18,

This invention relates to devices for forming alimentaryproducts from plastic material, for example: doughmits or crullers from .pre ared dough. ,P

' 15 the above attributes, for regulation whereby the size of the formations may be changed at will, as well as for ready dismantling of the.

parts directly concerned in the manipulation and cutting of the plastic so that they may be a easily inspected and cleaned and'again restored without disturbance of their adjustmentandtimin v Still. othero jects and attendant advanta as will be manifest from the following dell taied description of. the typical embodiment of this invention shown in the drawings whereof Fig. I is a plan view of'my improved formi'n device. a 7

'Fig. is a side elevation of the same with so a portion broken out and in section to expose important structural features.

ig. III is'an elevation of the device viewed from the right hand end of Fig. 11, also with a rtion broken away and in section; and I! ig. IV is a perspective view of the parts constituting the rotary actuating means for the element by which unit portions of the plastic are displaced. 1

'With more detailed reference to these illustrations 10 designa device, the same-afiording a hopper 11 which a U I inappropriately configured around its top for superim ition andretainment of a storage magazine (not shown) for the dough. From Fig. II it will'beobserved that the opper 11 discharges downwardly through an axially ofiset outlet 12. Within a cylindric chamber 13 afiorded by the casing 10 between the hopper 11 and the outlet=12, operates alateral- IQ ly reciprocating plunger-15, held against ro-i of relative a justment tov 'arythe'throw .of

' tween two longitudinal y spaced inward protes vthe casing of the 1928. Serial Io. senses.

tation by a key 15, said plunger having its inner face 16 sloped somewhat to the vertical for capacity to cooperate with a counter slope of the opposite wall of the casing 10 at 17 m insuring at each actuation, downward displacementof unit portions of the don h into the outlet 12. The piston 15 is made ollow to accommodate a rotary actuating means here shown as a double acting cam 18 embodying two com anion sections18, 18 capable the plunger as hereinafter more fully explained. The actuatin cam 18 engages bejections of the plunger 15 having, in the present instance, the form of anti-friction rollers 19, 19. The section 18 of the cam has an integral axial cylindric prolongation 20 which servesas a drve shaft therefor, said" pgolongation projectibg through an axial l0 aring boss of a screw cap 21 forming. the outer wall of the chamber 13. To the posterior end of .the axial shaft prolongation 20 of the cam section 18 is keyed a drive disk 22 provided with a hand asp 23 for manual operation. If desired t e device may be. adapted for power operation by em loying the disk 22 either as a ulley, or by orming the same as a gear. e camsection 18' is held against axial shifting through engageecment ofa shoulder 20 on its shaft extension 20. with the in-sideof the central bearing of the screw cap 21 on the one hand, and on the other-hand through abutment of a thumb knob 25 at the outer end of a regulating stem 26, with the outer face of the drive disk 22. The regulating stem 26 extends axially inward through the shaft prolon' ation 20, and terminates in a diametrically e arged threaded portion 27 for engaging an internally threaded boss ofthe-cam'section 18" which is 'shiftable axially relativeto the section 18" "but held against turning through traverse of a stud 28 in an o ning 29 of said section 18".

=With the descri arrangement it will be I seen that, by turning the thumb knob 25, the cam sections 18', 18' 'can'be spaced to difierent extents thereby increasingor decreasing the width of the cam '18. ;-T his results in varymefi mu the clearance or play between the inclin the plunger.

cam edge of the section 18 and the roller 19 with which it cooperates whereby the inward movement of the plunger is correspondingly altered to vary the umtquantities displaced through the outlet 12 from the hopper 11 by It is however important to observe that as a consequence of the immobility of the section 18 as re ards longitudinal shifting, the outer limit 0 movement of the plunger 15 remains unchanged with avoidance normally of obstruction to the flow'o'f the dough from the hopper 11 into the province of said plunger.

A disk 30 vertically spaced from the lower edge of a removable extension piece 31 of the outlet 12, constitutes jointly with the latter, an annular-die opening 32 for extrusion of the dough, said disk being suspended axially from a bridge bar. 33 internally of said outlet, see Figs. I and III, A cutter sleeve 35 slidable on the extension 31 cooperates, b shear ing action over the edge of the dis 30, to sever annular formations. of the plastic extruded through the die opening 32. The cutter sleeve 35 has laterally extending projections 36 adapted to be engaged by downward hook extremlties 37 of a yoke piece 38 pivoted at 39, 39 to an operating member in the form of a clevised rocker arm 40 having fulcrum sup ort. on an axis 41 engaged in lugs 420i the opper casing 10. T e hook extremities 37 are normally held in engagement with the projections 36 by tension springs 43. This construction permits the yoke 38 to be retractively swung against the pull of the sprin 43 to disengage the proi'ections 36 and permit removal of the cutter s save 35 from the outlet extension 31- for cleanin or inspection. The inward swin of the yoie 38 is limited asshown by-stop ugs 44 on the arm 40; and

p the hook extremities arebeveledattheirlowits rearward stro es.

er ends as indicated at 45. Accordingly as the sleeve 35 is moved u wardly on the outlet extension 31 incidenta 1 to ire-assembling, the

yoke 38'is automatical y-defiected for, assage of the In 36 into the notches of the ooked extremitles 37. A roller 46' at the opposite end of the rocker arm 40 enga es an open cam groove 47 in the'inner face 0 the drive disk 22, said cam, roove bei diverted inwardly at 47 (Fig. I) so as to e efiective in causing uick ownand up movement-of the cut ter s eeve35 to sever the extrusions in altefrnation with the active strokes of the piston 15, that is to say while the plunger executes From the foregoing it will be seen that my improved forming device is extremely simple and compact in construction and therefore free from the possibility of easy derange ment. It is moreover easily kept cleanythe cutter sleeve 35 being withdrawable for thepurpose as already ex lainediZ and the displacing piston 15 toget er wit its actuating I mstrumentalities i. e., the rotary cam 18, an

- the exterior of the 'rial'dischargingt rou mqwementv to correspondingly 8.

scribed comprising a o the parts, can be accomplished without disturbing the adjustment of the piston actuating cam 18.

Having thus described my invention, I claim:

1. A forming device of the character described comprising a hopper with a continuously-comm'unicatm discharge outlet for plastic material, an intermediary reciprocating plunger for displacing the plastic from the opper through the outlet, and rotary actuatin means coaxial with the plunger. I 2. A f orming device of the character described comprising a hopper with a continuously-communicatmg discharge outlet for plastic. material, an intermediary reciprocat: ing plunger for displacing the plastic from the hopper through the outlet, and a rotary actuatln cam coaxial with said plunger.

3. A orming device of the character described comprising a hopper with a continuousl communicating discharge outlet for plastic material, an intermediary reciprocatmg lungerfor displacing the plastic from the opper through the outlet, and a rotary actuating cam operating within a hollow of the plunger.

4. A forming device of the character described comprising a hopper with a continuously. communicating discharge outlet for' plastic materiahan intermediary reci rocatmg plunger for dis lacing unit portions of the plastic from the zipper through the-outlet, and rotary actuati means within a hollow of the plunger ca 1c. of regulation from evice to vary the throw of said plun er and thequantity in the unit portions of t e plastic. I

5. A forming device of thecharacter de-. scribed comprisln a ho per for plastic'matea continuously-communicating downwar outlet, 9. laterally IL- ciprocating plunger 0 erating intermediate the hopper and the out at, and re tasting means within a hollow o the pl 7 where y the throw of the latter. may be varied relative to a.-'fixed outer limitjof plunger vary unit quantities {of the" plastic 'dis normally obstructing flow of d p I v the ho per into the'province of the plunger.

6. A. orming device of the character dehopper for plastic material discharging throng a downward outlet, a laterally. reciprocating hollow plunger operating in a chamber intermediate-tho hppper andthe outlet, a double acting rogits position. It

atable ac a cod without eplastic from tary actuating cam within the hollow of the plunger adapted to engage between spaced projections of the latter, a driving shaft for the cam extending to the exterior throu h the 'end wall of the chamber, and regu ating means extending axially through the drive shaft for adjusting a movable section of the actuating cam for the purpose of varying the throw of the plunger and the unit portions of the plastic displaced from the hopper.

7. A forming device of the character described comprising a hopper for plastic material discharging through a downward outlet, a laterally reciprocating hollow plunger operating in a chamber intermediate the hopper and the outlet, a double acting rotary actuating cam within the hollow of the. plunger adapted to engage between spaced projections of the latter, a driving shaft for the cam extending to the exterior through the end wall ofthe chamber, and a regulating stem accessible from the exterior to adjust a movable section of the actuating cam for the purpose of varying the throw of the plunger and the unit portions of the plastic displaced thereby, said stem extending axially through the drive shaft aforesaid and having a threaded connection with the movable cam section.

8. A forming device of the character described com rising a hopper with a,forming die outlet or plastic material, an intermediary ing unit portions of the plastic from the hopper through said die outlet, rotary actuating means within a hollow of the plunger, cutting means for severing the formations extruded through said die outlet, and means coordinating said cutting means with the rotary actuating means of the plunger for reciprocating plunger for displacend of the plunger chamber, a vdriving disk secured to the posterior portion of said driving shaft, cutting means to sever extrusions through the die opening aforesaid, and an operating member for actuating the cutting means having a roller running in an open cam groove in one face of the drive disk, the plunger, its actuating means and the drive disk being removable as a unit with the 010- I .tremities to engage lugs projecting from opposite sides of the cutter sleeve, said yoke piece'being pivotally connected to the clevis ends of the actuating member for retractive swinging movement to release the sleeve and permit its removal from the outlet aforesaid.

' In testimony whereof, I have hereunto signed my name at Philadelphia, Pennsylvania, this 14th day of June, 1928'. JOHN C. BERGNER.

intermittent operation in alternation with the active strokes of said plunger.

9. A forming device 0 scribed comprising a hopper with an outlet discharging through an annular die opening, a reciprocating lunger for displacing unit portions of plastic through the annular die opening, rotary actuating means coaxial with the plunger including a drive disk, a cutter sleeve slidable on the hopper outlet to sever extrusions of the plastic through the the character dedie opening, and an o crating member with a roller running 1n a. ace cam groove of .the drive disk aforesaid for actuating the cutting means intermittently in alternation with the active strokes of the displacing plunger.

" 10. A forming device of the character described comprising a hopper for plastic material having an outlet discharging through an annular die opening, a hollow reciprocating plun er operating in a chamber intermediate t e ho per and the outlet, rotary actuating means ocatedwithin the hollow of the plunger having a drive shaft extending to the exterior through a cap closing the 

